Cuvette housing



FIG. 1 is a top plan view of a cuvette housing embodying my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear end elevational view thereof; and

FIG. 5 is a front end elevational view thereof.

The portions shown in broken lines in FIG. 1 are cuvettes, conventional in the art and do not form part of the claimed design. 

The ornamental design for a cuvette housing, substantially as shown and described. 